Home / 207,260,808.40-311,090,278.20-105,140,155.60

Finding the Fourth Proportional to 207,260,808.40, 311,090,278.20 and 105,140,155.60

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Solution

The fourth proportional to 207,260,808.40, 311,090,278.20 and 105,140,155.60 is: 157,811,216.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,260,808.40 : 311,090,278.20 = 105,140,155.60 : x
  2. Step 2: Convert to fraction form
    207,260,808.40/311,090,278.20 = 105,140,155.60/x
  3. Step 3: Cross multiply
    207,260,808.40x = 311,090,278.20 × 105,140,155.60
  4. Step 4: Simplify right side
    207,260,808.40x = 32,708,080,255,595,284
  5. Step 5: Solve for x
    x = 32,708,080,255,595,284/207,260,808.40
  6. Step 6: Final answer
    x = 157,811,216.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.